CN204992643U - USB interface charging device based on switch mode regulator - Google Patents
USB interface charging device based on switch mode regulator Download PDFInfo
- Publication number
- CN204992643U CN204992643U CN201520489511.4U CN201520489511U CN204992643U CN 204992643 U CN204992643 U CN 204992643U CN 201520489511 U CN201520489511 U CN 201520489511U CN 204992643 U CN204992643 U CN 204992643U
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- China
- Prior art keywords
- module
- controller
- usb interface
- device based
- switch mode
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- Expired - Fee Related
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- Continuous-Control Power Sources That Use Transistors (AREA)
- Direct Current Feeding And Distribution (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a USB interface charging device based on switch mode regulator charges the module by temperature monitoring module, voltage testing, current detection module, controller, charging current adjusting module and termination with constituteing, temperature monitoring module, voltage testing, current detection module be connected with the input of controller respectively, charging current adjusting module and the termination module of charging is connected respectively to the output of controller, the controller DS2712 chip has, the controller have P channel MOSFET as the switching power transistor, the temperature monitoring module thermistor has, charging current adjusting module ceramic filter capacitance has. The utility model discloses simple structure, convenient to use, the technique is reasonable. Utilize the regulator to adjust the USB charged state, make the efficient of drive circuit part, reduce the loss of the energy.
Description
Technical field
The utility model belongs to a kind of field of electronics, is specifically related to a kind of USB interface charging device based on switch mode regulator.
Background technology
Current normally used charger is all operationally be connected with load by conductor, therefore electric safety problem may be there is, and junction contacts is bad when often there will be grafting, particularly after long-term use, the phenomenons such as loose contact or fault may be produced, some product is also attempted using wireless charger, electromagnetic induction principle is utilized to carry out transmission of electric energy, general is all be respectively equipped with ultrasonic oscillator at charger internal, launch resonator, receive resonator, rectification circuit etc., circuit structure is very complicated and power dissipation concerns is serious, efficiency only has about 30%-45%.Effective rate of utilization lowly can cause the high of cost, does not utilize marketing and popularizes.
Utility model content
The purpose of this utility model is to provide a kind of USB interface charging device based on switch mode regulator, to solve the deficiency existed in above-mentioned technology.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of USB interface charging device based on switch mode regulator, be made up of temperature monitoring module, voltage detection module, current detection module, controller, charging current adjustment module and termination charging module, described temperature monitoring module, voltage detection module, current detection module are connected with the input of controller respectively, and the output of controller connects charging current adjustment module respectively and stops charging module.
Described controller has DS2712 chip.
Described controller has P channel mosfet as power switch transistor.
Described temperature monitoring module has thermistor.
Described charging current adjustment module has ceramic filter capacitor.
The utility model structure is simple, and easy to use, technology is reasonable.Utilize adjuster to regulate USB charged state, make the efficiency of driving circuit section high, reduce the loss of the energy.
Accompanying drawing explanation
Fig. 1 is construction module schematic diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of USB interface charging device based on switch mode regulator, by temperature monitoring module, voltage detection module, current detection module, controller, charging current adjustment module and termination charging module composition, described temperature monitoring module, voltage detection module, current detection module is connected with the input of controller respectively, the output of controller connects charging current adjustment module respectively and stops charging module, described controller has DS2712 chip, described controller has P channel mosfet as power switch transistor, described temperature monitoring module has thermistor, described charging current adjustment module has ceramic filter capacitor.
Claims (5)
1. the USB interface charging device based on switch mode regulator, be made up of temperature monitoring module, voltage detection module, current detection module, controller, charging current adjustment module and termination charging module, it is characterized in that: described temperature monitoring module, voltage detection module, current detection module are connected with the input of controller respectively, the output of controller connects charging current adjustment module respectively and stops charging module.
2. the USB interface charging device based on switch mode regulator according to claim 1, is characterized in that: described controller has DS2712 chip.
3. the USB interface charging device based on switch mode regulator according to claim 1, is characterized in that: described controller has P channel mosfet as power switch transistor.
4. the USB interface charging device based on switch mode regulator according to claim 1, is characterized in that: described temperature monitoring module has thermistor.
5. the USB interface charging device based on switch mode regulator according to claim 1, is characterized in that: described charging current adjustment module has ceramic filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489511.4U CN204992643U (en) | 2015-07-09 | 2015-07-09 | USB interface charging device based on switch mode regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489511.4U CN204992643U (en) | 2015-07-09 | 2015-07-09 | USB interface charging device based on switch mode regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992643U true CN204992643U (en) | 2016-01-20 |
Family
ID=55126971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489511.4U Expired - Fee Related CN204992643U (en) | 2015-07-09 | 2015-07-09 | USB interface charging device based on switch mode regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863801A (en) * | 2017-11-15 | 2018-03-30 | 宁波麦博韦尔移动电话有限公司 | A kind of charging circuit and its charging device |
| CN113644712A (en) * | 2021-08-05 | 2021-11-12 | 广东合科泰实业有限公司 | Linear charging management chip |
-
2015
- 2015-07-09 CN CN201520489511.4U patent/CN204992643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863801A (en) * | 2017-11-15 | 2018-03-30 | 宁波麦博韦尔移动电话有限公司 | A kind of charging circuit and its charging device |
| CN113644712A (en) * | 2021-08-05 | 2021-11-12 | 广东合科泰实业有限公司 | Linear charging management chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |